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Finding the Fourth Proportional to 22,976,646.88, 31,707,676.88 and 12,663,345.36

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Solution

The fourth proportional to 22,976,646.88, 31,707,676.88 and 12,663,345.36 is: 17,475,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,976,646.88 : 31,707,676.88 = 12,663,345.36 : x
  2. Step 2: Convert to fraction form
    22,976,646.88/31,707,676.88 = 12,663,345.36/x
  3. Step 3: Cross multiply
    22,976,646.88x = 31,707,676.88 × 12,663,345.36
  4. Step 4: Simplify right side
    22,976,646.88x = 401,525,262,894,727.25
  5. Step 5: Solve for x
    x = 401,525,262,894,727.25/22,976,646.88
  6. Step 6: Final answer
    x = 17,475,363.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.